I have a folder of X number of textures, I wish to render the same image X number of times, once for each texture
Use an image sequence as input for your Image Texture node then render an animation.



When clicking the folder button in the Image Texture node to browse for files make sure you tick the option Detect Sequences to the bottom left of the File Browser.



Pick all images in the folder and set them up as an animated texture sequence, adjust the sequence speed so it matches on picture per scene frame.



You will have to make sure your image files have consistent naming and identical file format, so Blender can detect them as a sequence. That means a base name similar across all files, plus a numbering scheme. Say something along the lines of Base_File_####.extension.